today on cnn's "state of the union," senator lindsey graham said there were plenty of clues that tsarnaev had been radicalized. >> the ball was dropped in one of two ways. fbi missed a lot of things is one potential answer, or our laws do not allow the fbi to follow up in a sound, solid way. there was a lot to be learned from this guy. he was on websites talking about killing americans. he went overseas, as chuck indicated. he was clearly talking about radical idea. he was visiting radical areas. it's people like this that you don't want to let out of your sight, and this was a mistake. i don't know if our laws are insufficient or the fbi failed, but we're at war with radical islamists and we need to up our game. >> defense secretary chuck hagel spoke about the bombings today while on a flight to israel saying, the attack was criminal and every region of the world is not safe from these terrible acts. >> i have not seen any intelligence that would make such a link, but as you know, all of the facts are not in. all of the dynamics and intelligence is not complete and until we know that, un